11154350440 has 16 divisors (see below), whose sum is σ = 25097288580. Its totient is φ = 4461740160.

The previous prime is 11154350419. The next prime is 11154350461. The reversal of 11154350440 is 4405345111.

It is an interprime number because it is at equal distance from previous prime (11154350419) and next prime (11154350461).

It can be written as a sum of positive squares in 2 ways, for example, as 10521425476 + 632924964 = 102574^2 + 25158^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11154350399 and 11154350408.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139429341 + ... + 139429420.

Almost surely, 2^11154350440 is an apocalyptic number.

11154350440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11154350440 is an abundant number, since it is smaller than the sum of its proper divisors (13942938140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11154350440 is a wasteful number, since it uses less digits than its factorization.

11154350440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278858772 (or 278858768 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 11154350440 its reverse (4405345111), we get a palindrome (15559695551).

The spelling of 11154350440 in words is "eleven billion, one hundred fifty-four million, three hundred fifty thousand, four hundred forty".